Improvement in rubber-gutting machin es



4 v BSheetS- -Sheet 1'.- G. FORD,J. M. S LADE 85 P. BAYLIES.

V Rubber-Cutting Machine Patgnted May I 1878.

N.FETF.RS, PHOTO LTHQGRAPHER. WASHINGTON D C 3 Sheets-Shet 2'.

(H-P0111), J. M; SLADE & F. BAYLIES.

Rubber-Cutting Machine No.204,145. Patented May 28,1878.

3Sheets-Shet3. 0. FORD, J. M. SLAD'E 82; F. BAYLIES.

Rubber-Cutting Machine Patented May 28, 1878..

AFHER, WASMXNGTON n c N. PETERS. PH

1 UNITED :GFFtoE.

i CHARLES FORD, JARVIS SLADIE, AND FRANKLIN 'BAYLIES, on NEW YORK, NY. l

IMPROVEMENT 1m RUBBER-CUTTING 'M-ACHINE-S.

- Specification formingpart ofvLetterszPatent No. 204,145, dated May- 28, 1878 applicationfiled r February 28,1878.

To all whom it may concern.-

Be it known that we, CHARLES Fo n, J AR vIs MORGAN SLADE, and FRANKLIN'BAYLIES,

-all of the city, county, and State of New York,

have jointly invented'cert-ain improvements for cutting sheetu'ubber and such like mate- 'rials intoshapes or blanks and-we do hereby declare that the following is a full, clear, and exact description and specification of the same, reference being had to the annexed drawings, making partof the same.

Our invention relates, primarily, to the manufacture of rubber shoes, and our improvements are intended to be connected with the rolls now used to. make the rubber into sheets,

Previous to our invention rubberhad been made intosheets passed through calenderrolls and printing-rolls, tomark o'utthelines to be followed by the hand informing the shapes or blanks for rubber shoes-0r such like articles.

:The object of our invention is to dispense wholly or in part with the hand labor in'cut- I ting the rubber sheet into shapes -'after;leav-,

ing the printing-rolls, and tocut said sheets into continuous strips shaped and cut ready to be made into blanks by simply separating the duplicated shapes crosswise of the strip.

Our invention is applied close to the calcuder-rolls, or to the printing-rolls,-if such be used; and our invention consistsin ,certain new combinations of mechanism, specifically I set forth at tlieend of this schedule, by means of which'we cut the rubber sheet into shapes while the sheet is in motion,.thus preparing it for immediate use, and avoiding the expense and a large'part of thethand labor in rubbershoe manufacture.

In order that persons skilled in the art may or the rubber sheet under it.

Big. 4 is a vertical section at right angles to the axis of the-rolls on-the line a: m,'Fig.-1. Fig.5-is a rear elevation of the same.

O'is acutting-roll, under which the sheet of rubberpassesafter leaving the calender-rolls A and B, the speed of its circumference being that of the rubber sheet. Thisroll O, asv well as-all the-other rolls of the mechanism,are

mounted on shafts provided with hearings in the end frames D 1). Under this roll Gare two vertical spindles, E E, mounted in bearin gs in the carriages-F F, in such a manner as to enable them to move back and forth in a horizontal directionina vertical plane passing through the axis of the roll O, and also to rotate on their own axes. Connected to the upper ends of the said spindlesE E are sleeves GG, extending above the'spindles nearly to the-lowersurface, of the roll 0, and they contain r-short stems H H, which carry the revolving knives K K on horizontal pins, which find bearingsin thesaid stems. The stems H H have a squarehorizon tal cross-section, and fit into square sockets in'the upper part of the sleeves, in order to compel them to turn with the spindles and sleeves. Under these stems, in the sockets, are spiral springs resting on the top of the spindles, which serve itojcontinuously press the stems upward, and 'lwith them the revolvingknives, against the-'roll'O The spindles E E extend downward below the carriages F F, and their endsar "fl 'ttened on thes'ides to fit into thecam-groo es the roll 0. This flattening is top're "t the spindles fromturning around, and t H mpel the revolving knives, which are set in avertical plane parallelwith the flattened sides, to assume the same angle in reference :to the axis of the roll 0 as the flattened sides of the LL in vbottom of the spindles bear to the axis of the roll 0 during the changes effected by the shapes of the grooves L L, while the roll 0 revolves.

The roll 0 is located in the frame under the roll 0, and its axis is in the sameivertical plane and parallel to it. Cam-grooves L L are cut in its surface, extending entirely around its entire circumference, and are so shaped that they give the desired shape to the blanks cut from thesheet-rubber by the revolving cutters or knives;a s it passes, along --in",th e direction of thegarrow, Fig. A.'-:=;

The speed of the sheet of rubber-and at The carriages F F are arranged to slide in r a horizontal direction parallel with the axes. of the rolls 0 and O in slides or ways N N. On the side of each carriage, toward the camroll M, is a pin, P, fixed in the carriage, and extending horizontally into cam-grooves Q Q cut in the surface of the roll M, and having the same configuration as the grooves L L in roll 0. The grooves Q Q on roll M, however, are connected with the grooves L L 011 roll 0 by means of the gears R, S, T, and U, so that they can give the same motion to the carriages through the pin P as is given to the said carriages by the spindles E E and grooves L-L. The object of the cam-roll M and its grooves is to give a more positive motion to the carriages and spindles, and to relieve the spindles in part from the duty of driving the carriages, and to depend on, the grooves L L only to give the proper angle to the revolving knives.

The operation is as follows: Power, being applied to one of the train of rolls, is communicated to the others of the series by means of gears, and it is desirable that the speed of the surface of all rolls should be alike. The rubber, having been made into a sheet by rolls, (not shown in the drawings, but in the usual way,) and the sheet being passed through between the calender-rolls A and B,

is carried under the roll 0. The sheet meets {the revolving knives K K at a line on the under surface of roll 0 vertically under its axis, "and is cut into any desired form, depending on the shape of the camgrooves of the rolls M and O. The sheet of rubber thus cut is left in continuous lengths, so that it will pass the rolls when it is discharged from the maallow the revolving knives tooperate, we have adopted, the arrangement herein described, as more cqnvenient inmanyrespects, particularly as to the compactness of the parts.

The cams may be made of any desired form, and four spindles with cutters and cams may be used .to give shape tothe interior of the blank which forms the upper edge of the rubber shoe or other article, also the shape here shown, being the part of the shoe which is attached to the sole.

If a printing or ornamenting roll is to be used, it should be the roll B. In such case 1 the rolirBshould be separated, from roll 0 a .isufficient distance to prevent roll B from pressing the sheet of rubber hard against roll 0.

We are aware that revolving knives have been used to trim the sheet of rubber on its edges; but we are not aware that the said cutters have ever been moved in any manner along the surface of the roll to cut,the rubber sheet into shapes or blanks.

i Having now fully described our invention, what we claim, and desire to secure by Letters Patent, is-'- I i 1. The combination, substantially as hereinbefore set forth, of the cutter-roll, one or more carriages and spindles provided with cut, ters or knives, and one or more revolving cams, shaped and connected substantially as described, to move the spindles and the cutters or knives along the surface of the cutter-roll parallel with its axis, all arranged tooperatc in the manner and for the purposes set forth.

2. The combination, substantially as hereinbefore set forth, of the cutter-roll, one or more carriages and spindles provided with revolving cutters or knives, and two revolving cams for each carriage and spindle, one cam presenting the cutters at the proper angle to the rubber sheet, and one for giving the cutter a motion along the surface of the cutter-roll parallel with its axis, all constructed and arranged to operate in the manner and for the purposes set forth.

3. The combination, substantially as hereinbefore set forth, ofthe cutter-roll and one or more carriages and spindles provided with revolving cutters, arranged to move parallel to the axis of the cutter-roll, substantially in the manner and for the purposes set forth.

Witnesses:

W. L. BENNEM, WM. V. HIoKs. 

